<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <!-- This file is part of systemd. Copyright 2015 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. --> <refentry id="sd-bus-errors"> <refentryinfo> <title>sd-bus-errors</title> <productname>systemd</productname> <authorgroup> <author> <contrib>Developer</contrib> <firstname>Lennart</firstname> <surname>Poettering</surname> <email>lennart@poettering.net</email> </author> </authorgroup> </refentryinfo> <refmeta> <refentrytitle>sd-bus-errors</refentrytitle> <manvolnum>3</manvolnum> </refmeta> <refnamediv> <refname>sd-bus-errors</refname> <refname>SD_BUS_ERROR_FAILED</refname> <refname>SD_BUS_ERROR_NO_MEMORY</refname> <refname>SD_BUS_ERROR_SERVICE_UNKNOWN</refname> <refname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</refname> <refname>SD_BUS_ERROR_NO_REPLY</refname> <refname>SD_BUS_ERROR_IO_ERROR</refname> <refname>SD_BUS_ERROR_BAD_ADDRESS</refname> <refname>SD_BUS_ERROR_NOT_SUPPORTED</refname> <refname>SD_BUS_ERROR_LIMITS_EXCEEDED</refname> <refname>SD_BUS_ERROR_ACCESS_DENIED</refname> <refname>SD_BUS_ERROR_AUTH_FAILED</refname> <refname>SD_BUS_ERROR_NO_SERVER</refname> <refname>SD_BUS_ERROR_TIMEOUT</refname> <refname>SD_BUS_ERROR_NO_NETWORK</refname> <refname>SD_BUS_ERROR_ADDRESS_IN_USE</refname> <refname>SD_BUS_ERROR_DISCONNECTED</refname> <refname>SD_BUS_ERROR_INVALID_ARGS</refname> <refname>SD_BUS_ERROR_FILE_NOT_FOUND</refname> <refname>SD_BUS_ERROR_FILE_EXISTS</refname> <refname>SD_BUS_ERROR_UNKNOWN_METHOD</refname> <refname>SD_BUS_ERROR_UNKNOWN_OBJECT</refname> <refname>SD_BUS_ERROR_UNKNOWN_INTERFACE</refname> <refname>SD_BUS_ERROR_UNKNOWN_PROPERTY</refname> <refname>SD_BUS_ERROR_PROPERTY_READ_ONLY</refname> <refname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</refname> <refname>SD_BUS_ERROR_INVALID_SIGNATURE</refname> <refname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</refname> <refname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</refname> <refname>SD_BUS_ERROR_MATCH_RULE_INVALID</refname> <refname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</refname> <refpurpose>Standard D-Bus error names</refpurpose> </refnamediv> <refsynopsisdiv> <funcsynopsis> <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo> <funcsynopsisinfo>#define SD_BUS_ERROR_FAILED "org.freedesktop.DBus.Error.Failed" #define SD_BUS_ERROR_NO_MEMORY "org.freedesktop.DBus.Error.NoMemory" #define SD_BUS_ERROR_SERVICE_UNKNOWN "org.freedesktop.DBus.Error.ServiceUnknown" #define SD_BUS_ERROR_NAME_HAS_NO_OWNER "org.freedesktop.DBus.Error.NameHasNoOwner" #define SD_BUS_ERROR_NO_REPLY "org.freedesktop.DBus.Error.NoReply" #define SD_BUS_ERROR_IO_ERROR "org.freedesktop.DBus.Error.IOError" #define SD_BUS_ERROR_BAD_ADDRESS "org.freedesktop.DBus.Error.BadAddress" #define SD_BUS_ERROR_NOT_SUPPORTED "org.freedesktop.DBus.Error.NotSupported" #define SD_BUS_ERROR_LIMITS_EXCEEDED "org.freedesktop.DBus.Error.LimitsExceeded" #define SD_BUS_ERROR_ACCESS_DENIED "org.freedesktop.DBus.Error.AccessDenied" #define SD_BUS_ERROR_AUTH_FAILED "org.freedesktop.DBus.Error.AuthFailed" #define SD_BUS_ERROR_NO_SERVER "org.freedesktop.DBus.Error.NoServer" #define SD_BUS_ERROR_TIMEOUT "org.freedesktop.DBus.Error.Timeout" #define SD_BUS_ERROR_NO_NETWORK "org.freedesktop.DBus.Error.NoNetwork" #define SD_BUS_ERROR_ADDRESS_IN_USE "org.freedesktop.DBus.Error.AddressInUse" #define SD_BUS_ERROR_DISCONNECTED "org.freedesktop.DBus.Error.Disconnected" #define SD_BUS_ERROR_INVALID_ARGS "org.freedesktop.DBus.Error.InvalidArgs" #define SD_BUS_ERROR_FILE_NOT_FOUND "org.freedesktop.DBus.Error.FileNotFound" #define SD_BUS_ERROR_FILE_EXISTS "org.freedesktop.DBus.Error.FileExists" #define SD_BUS_ERROR_UNKNOWN_METHOD "org.freedesktop.DBus.Error.UnknownMethod" #define SD_BUS_ERROR_UNKNOWN_OBJECT "org.freedesktop.DBus.Error.UnknownObject" #define SD_BUS_ERROR_UNKNOWN_INTERFACE "org.freedesktop.DBus.Error.UnknownInterface" #define SD_BUS_ERROR_UNKNOWN_PROPERTY "org.freedesktop.DBus.Error.UnknownProperty" #define SD_BUS_ERROR_PROPERTY_READ_ONLY "org.freedesktop.DBus.Error.PropertyReadOnly" #define SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN "org.freedesktop.DBus.Error.UnixProcessIdUnknown" #define SD_BUS_ERROR_INVALID_SIGNATURE "org.freedesktop.DBus.Error.InvalidSignature" #define SD_BUS_ERROR_INCONSISTENT_MESSAGE "org.freedesktop.DBus.Error.InconsistentMessage" #define SD_BUS_ERROR_MATCH_RULE_NOT_FOUND "org.freedesktop.DBus.Error.MatchRuleNotFound" #define SD_BUS_ERROR_MATCH_RULE_INVALID "org.freedesktop.DBus.Error.MatchRuleInvalid" #define SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED \ "org.freedesktop.DBus.Error.InteractiveAuthorizationRequired"</funcsynopsisinfo> </funcsynopsis> </refsynopsisdiv> <refsect1> <title>Description</title> <para>In addition to the error names user programs define, D-Bus knows a number of generic, standardized error names, that are listed below.</para> <para>In addition to this list, in sd-bus the special error namespace <literal>System.Error.</literal> is used to map arbitrary Linux system errors (as defined by <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>) to D-Bus errors and back. For example, the error <constant>EUCLEAN</constant> is mapped to <literal>System.Error.EUCLEAN</literal> and back.</para> <variablelist> <varlistentry> <term><varname>SD_BUS_ERROR_FAILED</varname></term> <listitem><para>A generic error indication. See the error message for further details. This error name should be avoided, in favor of a more expressive error name.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_NO_MEMORY</varname></term> <listitem><para>A memory allocation failed, and the requested operation could not be completed.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_SERVICE_UNKNOWN</varname></term> <listitem><para>The contacted bus service is unknown and cannot be activated.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</varname></term> <listitem><para>The specified bus service name currently has no owner.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_NO_REPLY</varname></term> <listitem><para>A message did not receive a reply. This error is usually generated after a timeout.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_IO_ERROR</varname></term> <listitem><para>Generic input/output error, for example when accessing a socket or other IO context.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_BAD_ADDRESS</varname></term> <listitem><para>The specified D-Bus bus address string is malformed.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_NOT_SUPPORTED</varname></term> <listitem><para>The requested operation is not supported on the local system.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_LIMITS_EXCEEDED</varname></term> <listitem><para>Some limited resource has been exhausted.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_ACCESS_DENIED</varname></term> <listitem><para>Access to a resource has been denied, due to security restrictions.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_AUTH_FAILED</varname></term> <listitem><para>Authentication did not complete successfully.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_NO_SERVER</varname></term> <listitem><para>Unable to connect to the specified server.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_TIMEOUT</varname></term> <listitem><para>An operation timed out. Note that method calls which timeout generate a <varname>SD_BUS_ERROR_NO_REPLY</varname>.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_NO_NETWORK</varname></term> <listitem><para>No network available to execute requested network operation on.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_ADDRESS_IN_USE</varname></term> <listitem><para>The specified network address is already being listened on.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_DISCONNECTED</varname></term> <listitem><para>The connection has been terminated.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_INVALID_ARGS</varname></term> <listitem><para>One or more invalid arguments have been passed.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_FILE_NOT_FOUND</varname></term> <listitem><para>The requested file could not be found.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_FILE_EXISTS</varname></term> <listitem><para>The requested file exists already.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_UNKNOWN_METHOD</varname></term> <listitem><para>The requested method does not exist in the selected interface.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_UNKNOWN_OBJECT</varname></term> <listitem><para>The requested object does not exist in the selected service.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_UNKNOWN_INTERFACE</varname></term> <listitem><para>The requested interface does not exist on the selected object.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_UNKNOWN_PROPERTY</varname></term> <listitem><para>The requested property does not exist in the selected interface.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_PROPERTY_READ_ONLY</varname></term> <listitem><para>A write operation was requested on a read-only property.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</varname></term> <listitem><para>The requested PID is not known.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_INVALID_SIGNATURE</varname></term> <listitem><para>The specified message signature is not valid.</para> </listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</varname></term> <listitem><para>The passed message does not validate correctly.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</varname></term> <listitem><para>The specified match rule does not exist.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_MATCH_RULE_INVALID</varname></term> <listitem><para>The specified match rule is invalid.</para></listitem> </varlistentry> <varlistentry> <term><varname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</varname></term> <listitem><para>Access to the requested operation is not permitted, however, it might be available after interactive authentication. This is usually returned by method calls supporting a framework for additional interactive authorization, when interactive authorization was not enabled with the <citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry> for the method call message.</para></listitem> </varlistentry> </variablelist> </refsect1> <refsect1> <title>Notes</title> <para>The various error definitions described here are available as a shared library, which can be compiled and linked to with the <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para> </refsect1> <refsect1> <title>See Also</title> <para> <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>, <citerefentry><refentrytitle>sd_bus_error</refentrytitle><manvolnum>3</manvolnum></citerefentry>, <citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>, <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>, <citerefentry project='die-net'><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry> </para> </refsect1> </refentry>